Answer:
1. D. who sought to reanimate
2. H. who was
Step-by-step explanation:
In the first sentence, the subject is "the legendary mad scientist" thereby the use of the relative pronoun "who". This signifies that it relates to the subject of the sentence.
In sentence 2, "who was" shows the relation between Mary Shelley and her husband P. B. Shelley. This allows the readers to clearly understand how the author Mary was related to P.B. Shelley.
Therefore, the final sentences will be
"The character of Frankenstein did not originate in Hollywood. Rather, the legendary mad scientist (who sought to reanimate) lifeless bodies was the creation of Mary Wollstonecraft Shelley, (who was) married to famed poet Percy Bysshe Shelley. Her Frankenstein, or The Modern Prometheus, published in...."